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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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<script type="application/javascript" src="../unit.js"></script>
<script type="application/javascript" src="../util.js"></script>
<script type="application/javascript">

Tests.startUnit = function () {
  var canvas = document.getElementById('gl');
  var gl = wrapGLContext(getGLContext(canvas));
  return [gl];
}

Tests.testReadPixels = function(gl) {
  var id = new Uint8Array(16 * 16 * 4);
  assertOk(function(){gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);});
  assertOk(function(){gl.readPixels(0,0,16,16,gl.RGBA, gl.UNSIGNED_BYTE, id);});
  assertOk(function(){gl.readPixels(15,15,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);});
}
Tests.testReadPixelsRGBA = function(gl) {
  gl.clearColor(1, 0, 1, 0);
  gl.clear(gl.COLOR_BUFFER_BIT);
  var id = new Uint8Array(4);
  gl.readPixels(1,2,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);
  assertArrayEquals([255, 0, 255, 0], id);
}

Tests.endUnit = function(gl) {
}

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<canvas id="gl" width="16" height="16"></canvas>
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